Explain how the government can help the economy avoid a coordination failure

To help unscramble cause and effect, economists

A) use the concept of opportunity costs. B) must use the ceteris paribus assumption. C) answer the "what" question. D) answer the "how" question. E) must use normative statements.

Refer to the above table. Suppose the price of the good sold is $10 and the marginal factor cost of labor is $700, how many units of labor will the firm hire?

A) 10 B) 11 C) 12 D) 13